[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.28"]
[Round "6"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Castano Ortiz, Eder"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2091"]
[BlackElo "2037"]
[PlyCount "86"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 0-0 5. a3 Bxc3 6. Bxc3 Ne4 7. Qc2 f5 8. e3 b6 9. Rd1 Bb7 10. d5 Qe7 11. Nf3 d6 12. Be2 Nd7 13. 0-0 e5 14. Nd2 Nxc3 15. Qxc3 Rae8 16. b4 Rf6 17. e4 f4 18. Bg4 Nf8 19. c5 g6 20. Rc1 h5 21. Be2 Nh7 22. a4 Rf7 23. a5 Nf6 24. c6 Bc8 25. Ra1 g5 26. Ra3 g4 27. f3 Rg7 28. Rfa1 Kh7 29. axb6 axb6 30. R1a2 Reg8 31. Ra7 h4 32. Nc4 Qe8 33. fxg4 Nxg4 34. Qh3 Nh6 35. Qf3 h3 36. Bf1 Bg4 37. Qf2 hxg2 38. Bd3 Bh5 39. Qh4 Qg6 40. b5 Bf3 41. Nd2 Qh5 42. Nxf3 Qxf3 43. Be2 Qe3+ 0-1

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.28"]
[Round "7"]
[White "Lopez Gaviria, Alvaro Diego"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1973"]
[BlackElo "2091"]
[PlyCount "34"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 g6 2. Bf4 Bg7 3. e3 d6 4. Be2 Nc6 5. Nf3 Nf6 6. h3 0-0 7. 0-0 h6 8. Bh2 Nd7 9. c3 e5 10. Qc2 f5 11. dxe5 dxe5 12. Rd1 Qe7 13. a4 g5 14. Na3 h5 15. g4 hxg4 16. hxg4 f4 17. Bc4+ Kh8 1-0

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.27"]
[Round "5"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Sanchez Sanchez, Andres Felipe"]
[Result "1/2-1/2"]
[ECO "D86"]
[WhiteElo "2091"]
[BlackElo "1956"]
[PlyCount "55"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 0-0 8. Qd2 c5 9. Rd1 Qa5 10. Bc4 Nc6 11. Ne2 Rd8 12. 0-0 cxd4 13. cxd4 Qxd2 14. Rxd2 Na5 15. Bd3 Bd7 16. Rc1 Rac8 17. Rdc2 Rxc2 18. Rxc2 Rc8 19. Rxc8+ Bxc8 20. f4 b6 21. Kf2 Kf8 22. Nc3 Nc6 23. e5 e6 24. Be4 Bd7 25. Nb5 Nxe5 26. Nxa7 Ng4+ 27. Ke2 Nxe3 28. Kxe3 1/2-1/2

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.26"]
[Round "3"]
[White "Martinez, Mauricio"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1946"]
[BlackElo "2091"]
[PlyCount "45"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. e5 dxe5 6. Nxe5 Bg7 7. Bb5+ Nbd7 8. d4 0-0 9. dxc5 Qc7 10. Nxd7 Nxd7 11. Bxd7 Bxd7 12. 0-0 Rfd8 13. Qe2 Qxc5 14. Be3 Qc6 15. Nd2 e5 16. Rfd1 f5 17. Qc4+ Qxc4 18. Nxc4 Be6 19. Na5 b6 20. Nc6 Rxd1+ 21. Rxd1 f4 22. Bc1 Bxa2 23. Re1 1/2-1/2

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.25"]
[Round "2"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Panesso Rivera, Jenny"]
[Result "0-1"]
[ECO "C86"]
[WhiteElo "2091"]
[BlackElo "2411"]
[PlyCount "96"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. 0-0 0-0 8. c3 d5 9. d3 Bb7 10. Rd1 Re8 11. Nbd2 Bf8 12. Nf1 Na5 13. Bc2 c5 14. Ng3 g6 15. Ne1 Qb6 16. Be3 d4 17. Bd2 dxc3 18. bxc3 c4 19. d4 exd4 20. cxd4 Nc6 21. Be3 Nb4 22. f3 Nfd5 23. exd5 Nxd5 24. Be4 Nxe3 25. Qxe3 f5 26. Nxf5 Bxe4 27. fxe4 gxf5 28. Qg5+ Bg7 29. exf5 b4 30. Nf3 a5 31. Rac1 c3 32. Kh1 Kh8 33. Qh5 Qh6 34. Qxh6 Bxh6 35. Rc2 Re3 36. Ne5 Bg7 37. Nc6 Rae8 38. Kg1 Re2 39. Rdc1 Rd2 40. Kf1 Bxd4 41. Nxd4 Rxd4 42. Rf2 Kg7 43. Re1 Rxe1+ 44. Kxe1 a4 45. Rc2 Rc4 46. Kd1 b3 47. axb3 axb3 48. Re2 c2+ 0-1

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.24"]
[Round "1"]
[White "Londono, Neider Farid"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "1851"]
[BlackElo "2091"]
[PlyCount "30"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 Ng4 8. Bb5+ Kf8 9. Qf3 Nc6 10. Nxc6 bxc6 11. Bc4 Ne5 12. Qe2 Nxc4 13. Qxc4 Be6 14. Qd3 Rb8 15. b3 Rb4 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.10"]
[Round "9"]
[White "Aristizabal Lopez, Jorge Alberto"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "0-1"]
[ECO "B75"]
[WhiteElo "1915"]
[BlackElo "2118"]
[PlyCount "78"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. Bb5+ Nfd7 11. Nd5 0-0 12. Nc7 a6 13. Nxa8 axb5 14. Nc7 Ne5 15. Ncxb5 Qxa2 16. 0-0 Nc4 17. Qf2 Nxe3 18. Qxe3 Nc6 19. c3 Ne5 20. Ra1 Qc4 21. Qe2 Qc5 22. Kh1 Bd7 23. Ra4 Nc6 24. Rc4 Qb6 25. Nxc6 bxc6 26. Nd4 c5 27. Nc2 Bb5 28. Na3 Bxc4 29. Qxc4 Qb2 30. Nb5 Rb8 31. Nc7 Qxc3 32. Qa6 Qb3 33. Nd5 Bf8 34. h3 Qb7 35. Qa4 Bg7 36. f4 e6 37. Ne3 Bd4 38. Nc2 Qxe4 39. Nxd4 Qxd4 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.10"]
[Round "8"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Barrios, Felipe"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2118"]
[BlackElo "2006"]
[PlyCount "122"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 Be7 10. 0-0 0-0 11. a3 f5 12. exf6 Nxf6 13. b4 a6 14. Nc3 Bd7 15. Bc2 Qc7 16. Qd3 Rac8 17. Bd2 Bxb4 18. Nxd5 exd5 19. axb4 Ne4 20. Qb3 Nf6 21. Rac1 Bg4 22. Bd1 Qd6 23. Bc3 Ne4 24. b5 axb5 25. Qxb5 Bxf3 26. Bxf3 Rxf3 27. gxf3 Ng5 28. f4 Nh3+ 29. Kh1 Rd8 30. Qe2 Nxf4 31. Qg4 Rf8 32. Rce1 h5 33. Qg3 Qf6 34. Rg1 h4 35. Qe3 Qf5 36. f3 h3 37. Rg3 Kh7 38. Reg1 Ng2 39. Qd2 Rf7 40. Bb2 Ne7 41. Ba3 Ng6 42. Bd6 b5 43. Qc1 N6f4 44. Be5 Ng6 45. Qg5 Qxg5 46. Rxg5 N2f4 47. R5g4 b4 48. Rb1 Nd3 49. Rg3 Kg8 50. Rxh3 Nf2+ 51. Kg2 Nxh3 52. Kxh3 Rxf3+ 53. Kg4 Nxe5+ 54. dxe5 Re3 55. Kf5 b3 56. Ke6 d4 57. Kd6 Kf7 58. Rf1+ Ke8 59. Rb1 Rc3 60. e6 d3 61. e7 d2 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.09"]
[Round "6"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Chirivi Castiblanco, Angie Lizeth"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2118"]
[BlackElo "2031"]
[PlyCount "74"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Bd7 9. Ba4 Be7 10. d3 0-0 11. Ne4 Nd5 12. c4 Nc7 13. c5 Rb8 14. a3 Ne6 15. b4 Nd4 16. Qd1 f5 17. Nec3 Nb7 18. 0-0 f4 19. f3 Qe8 20. Nd2 Qh5 21. Nce4 Rf5 22. Bb2 Ne6 23. Nc4 Rbf8 24. Qe2 Bf6 25. Rac1 Qh6 26. Bb3 Rh5 27. h3 Kh8 28. Nf2 Ng5 29. Nxe5 Bxe5 30. Qxe5 Nxf3+ 31. gxf3 Rxe5 32. Bxe5 Qg5+ 33. Ng4 Bxg4 34. hxg4 Qxe5 35. Bc4 Qd4+ 36. Kg2 Re8 37. Rce1 Re3 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.09"]
[Round "7"]
[White "Garces Trujillo, Luis Javier"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1978"]
[BlackElo "2118"]
[PlyCount "66"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nf3 d6 4. Nc3 Nc6 5. h3 e5 6. dxe5 Nxe5 7. Nxe5 Bxe5 8. Qb3 Bg7 9. Be3 Nf6 10. g4 0-0 11. Bg2 Re8 12. 0-0-0 a5 13. Qa3 Be6 14. Bxb7 Bxc4 15. Bxa8 Qxa8 16. Qa4 Be6 17. g5 Nd7 18. h4 Rb8 19. Qa3 Ne5 20. b3 Qc6 21. Kd2 Qxc3+ 22. Kxc3 Nc4+ 23. Bd4 Nxa3 24. Bxg7 Kxg7 25. e4 Rb4 26. f3 Nb5+ 27. Kd3 a4 28. bxa4 Rxa4 29. Rb1 Ra3+ 30. Ke2 Rxa2+ 31. Ke3 Ra3+ 32. Kf4 Nd4 33. Rhf1 Ne2# 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.08"]
[Round "5"]
[White "Munoz Galvez, Jhon Edison"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2253"]
[BlackElo "2118"]
[PlyCount "41"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Nge2 e5 6. d5 Nce7 7. Be3 f5 8. f3 Nf6 9. Qd2 0-0 10. h3 f4 11. Bf2 Nh5 12. Rg1 g5 13. Nc1 c5 14. dxc6 bxc6 15. Nb3 Qc7 16. 0-0-0 Rd8 17. Bc5 Ng6 18. Bxd6 Qf7 19. Na5 Be6 20. c5 Bxa2 21. Nxa2 1-0

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.06"]
[Round "1"]
[White "Dabraccio, Guillermo"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1766"]
[BlackElo "2118"]
[PlyCount "87"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. Bf4 d6 4. e3 Nf6 5. h3 0-0 6. Be2 c5 7. 0-0 Qb6 8. Qc1 Nd5 9. Bg3 cxd4 10. exd4 Nc6 11. c3 e5 12. dxe5 dxe5 13. Na3 Nf4 14. Bxf4 exf4 15. Rd1 Re8 16. Nc4 Qc7 17. Bf1 Be6 18. a4 Rad8 19. Rxd8 Rxd8 20. Qe1 Bd5 21. Rd1 Bxf3 22. Rxd8+ Nxd8 23. gxf3 Ne6 24. Kh2 Bf6 25. Qe4 Qc5 26. Qe2 Bh4 27. Kg1 a5 28. Nd2 Qb6 29. Ne4 f5 30. Nd2 Ng5 31. Nc4 Qc5 32. Kg2 Nf7 33. Qd2 Kg7 34. b4 axb4 35. cxb4 Qa7 36. a5 g5 37. Nb6 h5 38. Qd7 Qb8 39. Bc4 Qf8 40. Nc8 g4 41. Nd6 Qxd6 42. Qxf7+ Kh6 43. Qe6+ Qxe6 44. Bxe6 1/2-1/2

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.09"]
[Round "6.18"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Lopez Idarraga, Daniel Eduardo"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2190"]
[BlackElo "1923"]
[PlyCount "47"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. Bd3 Nc6 7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 f6 10. exf6 Nxf6 11. 0-0 Bd6 12. Bf4 Qc7 13. g3 0-0 14. Rc1 Qe7 15. Ne5 Bxe5 16. Bxe5 Nxe5 17. dxe5 Ng4 18. Nf4 Rxf4 19. h3 Nxf2 20. Bxh7+ Kxh7 21. Qh5+ Kg8 22. gxf4 Ne4 23. Rc7 Qxc7 24. Qe8+ 1/2-1/2

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.07"]
[Round "3.21"]
[White "Fonseca Pinto, Carlos Arturo"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "1993"]
[BlackElo "2190"]
[PlyCount "119"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. f3 Qb6 9. Bb3 Nxe4 10. Nd5 Qa5+ 11. c3 Nf6 12. Nxc6 dxc6 13. Nxe7+ Kh8 14. Nxc8 Raxc8 15. 0-0 Rcd8 16. Qc2 Nd5 17. Bf2 Bh6 18. Rfe1 Rfe8 19. Rad1 Be3 20. Bxe3 Rxe3 21. Rxe3 Nxe3 22. Rxd8+ Qxd8 23. Qe4 Nd5 24. Bxd5 Qxd5 25. Qxd5 cxd5 26. Kf2 Kg7 27. Ke3 Kf6 28. Kd4 Ke6 29. Kc5 h5 30. b4 g5 31. a4 Ke5 32. g3 h4 33. a5 f5 34. b5 hxg3 35. hxg3 g4 36. fxg4 fxg4 37. a6 bxa6 38. bxa6 Ke4 39. Kc6 Kf3 40. Kb7 Kxg3 41. Kxa7 Kf4 42. Kb8 g3 43. a7 g2 44. a8Q g1Q 45. Qxd5 Qb6+ 46. Kc8 Qa6+ 47. Kd7 Qa7+ 48. Kd6 Qa3+ 49. Qc5 Qa6+ 50. Kc7 Ke4 51. Qd4+ Kf3 52. c4 Qa5+ 53. Qb6 Qe5+ 54. Qd6 Qa5+ 55. Kb7 Ke4 56. c5 Qb5+ 57. Kc7 Qa5+ 58. Qb6 Qc3 59. Qe6+ Kf3 60. Qh3+ 1-0

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.09"]
[Round "8"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Suharukova, Anastasia"]
[Result "1-0"]
[ECO "C42"]
[BlackElo "2020"]
[PlyCount "29"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Nc3 Nxc3 10. bxc3 dxc4 11. Bxc4 Bg4 12. Qd3 h6 13. h3 Bh5 14. g4 Bg6 15. Qxg6 1-0

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.08"]
[Round "7"]
[White "Bereznev, Andrey"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2090"]
[PlyCount "54"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 e5 5. Be3 Nc6 6. d5 Nce7 7. Nge2 f5 8. f3 Nf6 9. Nc1 0-0 10. Be2 f4 11. Bf2 g5 12. Nd3 Bd7 13. c5 Rf7 14. Rc1 Bf8 15. Qb3 b6 16. cxd6 cxd6 17. Nb5 Bxb5 18. Qxb5 Rg7 19. g4 fxg3 20. hxg3 h5 21. Rc4 Ng6 22. Kd2 Rh7 23. Be3 Bh6 24. Rc2 h4 25. g4 Qf8 26. Nf2 Rd8 27. Bd1 Nf4 0-1

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.07"]
[Round "6"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Yudkevich, Mikhail"]
[Result "0-1"]
[ECO "C06"]
[BlackElo "2153"]
[PlyCount "52"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. Nf4 Nxd4 10. Qh5+ Ke7 11. Ng6+ hxg6 12. exf6+ Nxf6 13. Qxh8 Kf7 14. Qh4 e5 15. Nf3 Nxf3+ 16. gxf3 Bf5 17. Bxf5 gxf5 18. 0-0 d4 19. Bg5 Qb6 20. Rac1 Nd5 21. Qh7 Qe6 22. a3 Bd6 23. Rfe1 Re8 24. Rc4 d3 25. Rh4 Nf6 26. Bxf6 Qxf6 0-1

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.06"]
[Round "5"]
[White "Radomsky, Viacheslav G"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2176"]
[PlyCount "97"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 Nc6 5. d3 d6 6. Rb1 a5 7. a3 f5 8. Nf3 Nf6 9. Bd2 0-0 10. Qc1 Re8 11. 0-0 e4 12. dxe4 Nxe4 13. Nxe4 fxe4 14. Bg5 Bf6 15. Bxf6 Qxf6 16. Qe3 Bf5 17. Nd2 Qd4 18. Qxd4 Nxd4 19. e3 Nf3+ 20. Bxf3 exf3 21. Rbc1 Bd3 22. Rfe1 Be2 23. Nb3 c5 24. Nd2 Re5 25. e4 g5 26. h3 h5 27. g4 Rf8 28. Kh2 Rf4 29. gxh5 Kg7 30. Rg1 Kh6 31. Rg4 Kxh5 32. Kg3 Rf7 33. a4 Re8 34. h4 gxh4+ 35. Rxh4+ Kg5 36. Rg4+ Kf6 37. Rf4+ Ke6 38. Rxf7 Kxf7 39. Nxf3 Kf6 40. Kf4 Bxf3 41. Kxf3 Rh8 42. Rg1 Rh3+ 43. Rg3 Rh1 44. Kf4 Rh4+ 45. Ke3 Rh1 46. Ke2 Ke5 47. Rb3 Rc1 48. Rxb7 Rxc4 49. f3 1/2-1/2

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.05"]
[Round "4"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Bogatirevich, Sergei"]
[Result "1/2-1/2"]
[ECO "B06"]
[BlackElo "2159"]
[PlyCount "40"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 c5 4. Nc3 Qb6 5. Nd5 Qd8 6. c3 e6 7. Nf4 cxd4 8. cxd4 Qa5+ 9. Qd2 Qxd2+ 10. Kxd2 d6 11. Rc1 Bd7 12. d5 Nf6 13. f3 exd5 14. Nxd5 Nxd5 15. exd5 0-0 16. b3 Rc8 17. Rc4 Rxc4 18. bxc4 Na6 19. Ne2 b5 20. Bd4 b4 1/2-1/2

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.04"]
[Round "3"]
[White "Galkin, Vladimir"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2199"]
[PlyCount "60"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Qb6 8. Qxb6 axb6 9. Nd4 Nf6 10. f3 d5 11. e5 Nd7 12. e6 Nc5 13. exf7+ Kxf7 14. f4 g6 15. Be3 Bg7 16. 0-0 Ne6 17. Rad1 Nxd4 18. Bxd4 e6 19. a3 Rhc8 20. Bxg7 Kxg7 21. Rfe1 Bd7 22. Rd2 Kf6 23. Ne2 g5 24. fxg5+ Kxg5 25. Nd4 Re8 26. c3 Kg6 27. Rf2 Kg7 28. Re5 Re7 29. Rfe2 Kf6 30. h3 Rae8 1/2-1/2

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.03"]
[Round "2"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Davydenko, Andrey"]
[Result "1/2-1/2"]
[ECO "B30"]
[BlackElo "2173"]
[PlyCount "69"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. g3 e5 4. Bg2 d6 5. c3 Nf6 6. 0-0 Be7 7. Re1 0-0 8. d3 Re8 9. Nbd2 Bf8 10. Nc4 Be6 11. Ne3 h6 12. d4 exd4 13. cxd4 d5 14. exd5 Nxd5 15. Nxd5 Bxd5 16. Rxe8 Qxe8 17. dxc5 Bxf3 18. Bxf3 Rd8 19. Qf1 Bxc5 20. Bxc6 Qxc6 21. Bf4 g5 22. b4 Bxb4 23. Be3 a6 24. Rc1 Qf3 25. Qc4 Bd2 26. Bxd2 Rxd2 27. Rf1 Kg7 28. a4 h5 29. h4 gxh4 30. Qxh4 f6 31. Qb4 Re2 32. Qb6 h4 33. Qc7+ Kg6 34. Qd8 Kg7 35. Qc7+ 1/2-1/2

[Event "Moscow op-B 04th"]
[Site "Moscow"]
[Date "2008.02.02"]
[Round "1"]
[White "Grigorian, Sergey"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2133"]
[PlyCount "108"]
[EventDate "2008.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Nxd5 cxd5 13. Bh6 Bxh6 14. Qxh6 Qa5 15. Kb1 e5 16. Bd3 Be6 17. b3 f5 18. h4 e4 19. Be2 Rac8 20. Rc1 Qc3 21. h5 Qg7 22. hxg6 hxg6 23. Qg5 Qf6 24. Qxf6 Rxf6 25. Rh6 Kg7 26. Rh2 f4 27. Rd1 Rc3 28. Kb2 Re3 29. Rd2 Bf5 30. Rh4 g5 31. Rh5 Kg6 32. Rh8 Rc6 33. Bb5 Rd6 34. Rg8+ Kf6 35. Rf8+ Ke5 36. Rg8 a6 37. Be2 g4 38. fxg4 Be6 39. Rf8 Rg3 40. Bf1 e3 41. Re2 Bxg4 42. Re1 Bf5 43. Rh8 Be4 44. Rh5+ Kf6 45. Rh6+ Ke7 46. Rh4 Rf6 47. Re2 d4 48. a4 d3 49. cxd3 Bxd3 50. Re1 Bxf1 51. Rxf1 Rxg2+ 52. Kc3 e2 53. Rfh1 f3 54. Re4+ Re6 0-1

[Event "Hostafrancs op 5th"]
[Site "Barcelona"]
[Date "2003.08.30"]
[Round "1"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Ikonnikov, Vyacheslav"]
[Result "1/2-1/2"]
[ECO "B31"]
[BlackElo "2546"]
[PlyCount "98"]
[EventDate "2003.08.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Nf6 5. e5 Nd5 6. 0-0 Bg7 7. Re1 0-0 8. d4 cxd4 9. cxd4 d6 10. Nc3 Nxc3 11. bxc3 a6 12. Bxc6 bxc6 13. Bf4 Be6 14. Qd2 Bd5 15. Ng5 dxe5 16. dxe5 Qc8 17. Rac1 Rd8 18. Qe3 h6 19. Ne4 g5 20. Bg3 Bxe4 21. Qxe4 Qe6 22. h4 Rd7 23. hxg5 hxg5 24. f4 gxf4 25. Bxf4 Rad8 26. Re3 Rd2 27. Rh3 Rd1+ 28. Rxd1 Rxd1+ 29. Kh2 Qg6 30. Qe2 Qb1 31. Qxa6 Rh1+ 32. Kg3 Qe1+ 33. Kg4 Rxh3 34. Qc8+ Bf8 35. gxh3 Qxc3 36. a4 Qb4 37. Qa8 e6 38. h4 Kh7 39. Qe8 Kg8 40. Qa8 Qe4 41. a5 Kg7 42. Qd8 Qg2+ 43. Bg3 Qe4+ 44. Bf4 Qg2+ 45. Bg3 Qe2+ 46. Kh3 Qf1+ 47. Kh2 Qe2+ 48. Kh3 Qf1+ 49. Kh2 Qe2+ 1/2-1/2

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "12"]
[White "Araujo, Adalberto Marcos"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1/2-1/2"]
[ECO "B71"]
[PlyCount "76"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Bg7 7. e5 Bg4 8. Bb5+ Kf8 9. Qd3 Nfd7 10. h3 a6 11. hxg4 axb5 12. exd6 Nc5 13. Qe3 b4 14. dxe7+ Qxe7 15. Qxe7+ Kxe7 16. Nce2 Nc6 17. Nxc6+ bxc6 18. Be3 Na4 19. Bd4 Bxd4 20. Nxd4 Kd6 21. 0-0-0 Kc7 22. Rhe1 Rhe8 23. Nf3 f6 24. g5 f5 25. Ne5 Nb6 26. Kb1 Nd5 27. g3 Reb8 28. Rd3 Rb7 29. Nc4 Rba7 30. a3 bxa3 31. Rxa3 Rxa3 32. Nxa3 Nc3+ 33. Kc1 Ne4 34. Rh1 Rh8 35. Rh3 Nf2 36. Rh2 Ne4 37. Nc4 Nxg3 38. Ne5 Nh5 1/2-1/2

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "1"]
[White "Arencibia Rodriguez, Walter"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2335"]
[PlyCount "94"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 Ne4 4. g3 Qa5+ 5. Nd2 g6 6. Bg2 Nd6 7. Qc2 Bg7 8. Ngf3 Na6 9. 0-0 b5 10. cxb5 Qxb5 11. Ne4 Nxe4 12. Qxe4 Qb4 13. Qe3 d6 14. a3 Qb7 15. Qd3 0-0 16. Rb1 Bd7 17. Bg5 Rfe8 18. Rfe1 Bb5 19. Qd2 Bc4 20. e4 Rab8 21. b4 cxb4 22. axb4 Nxb4 23. Rec1 Ba2 24. Rxb4 Qxb4 25. Qxa2 h6 26. Bd2 Qxe4 27. Re1 Qd3 28. Qxa7 Ra8 29. Qb7 Rab8 30. Qc6 Rbc8 31. Qd7 Rcd8 32. Qh3 h5 33. Bg5 Kf8 34. Qh4 f6 35. Be3 Qxd5 36. Nd4 Qa5 37. Rd1 Qa2 38. Qe4 Kf7 39. Qb7 d5 40. Nc6 Rd6 41. Bf4 Qa4 42. Rc1 Bh6 43. Bxd6 Bxc1 44. Bxd5+ Kg7 45. Nxe7 Kh6 46. Kg2 Rd8 47. Qb1 Ba3 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "11"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Candan, Gonzalo"]
[Result "0-1"]
[ECO "B29"]
[PlyCount "102"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. c4 Nc6 7. Qd1 Nde7 8. Bd2 Ng6 9. Bc3 Qc7 10. Qe2 Be7 11. g3 0-0 12. Bg2 d6 13. exd6 Bxd6 14. 0-0 b6 15. Nbd2 Bb7 16. Ne4 Be7 17. Rad1 Rfd8 18. Nfg5 h6 19. Nxf7 Kxf7 20. Qh5 e5 21. Rxd8 Nxd8 22. f4 Bc5+ 23. Kh1 Qc6 24. f5 Qxe4 25. fxg6+ Kg8 26. Bxe4 Bxe4+ 27. Rf3 Ne6 28. Qg4 Ng5 29. Qxe4 Nxe4 30. Bxe5 Rf8 31. Rxf8+ Kxf8 32. Kg2 Bd6 33. Bd4 Be7 34. b3 Bf6 35. Be3 Ke8 36. Kf3 Nc3 37. a4 Kd7 38. Kg4 Ne4 39. b4 Bc3 40. a5 bxa5 41. bxa5 a6 42. c5 Kc6 43. Kf5 Nxc5 44. h4 Kd5 45. g4 Ne6 46. h5 Bxa5 47. g5 hxg5 48. Bxg5 Bc3 49. h6 gxh6 50. Bxh6 a5 51. Bc1 a4 0-1

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "7"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Hernandez Guerrero, Gilberto Eduardo"]
[Result "1/2-1/2"]
[ECO "B91"]
[PlyCount "82"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 0-0 9. 0-0 b5 10. h3 Bb7 11. a3 Nbd7 12. g4 Nb6 13. Ng3 g6 14. f4 exf4 15. Bxf4 Nc4 16. Qf3 Rc8 17. Nd5 Bxd5 18. exd5 Nd7 19. b3 Qb6+ 20. Kh2 Nce5 21. Qf2 Qxf2 22. Rxf2 Rc7 23. Rc1 Rfc8 24. Re2 Kg7 25. Be3 h6 26. Ne4 f6 27. Bd4 Nd3 28. Nc5 N7xc5 29. cxd3 Nxb3 30. Rxe7+ Rxe7 31. Bxf6+ Kxf6 32. Rxc8 Re3 33. Be4 Nc5 34. Rc6 Ke5 35. Bxg6 Kxd5 36. Rb6 Nxd3 37. Bxd3 Rxd3 38. Rxa6 Re3 39. h4 Ke5 40. Ra5 d5 41. Rxb5 Rxa3 1/2-1/2

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "13"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Munoz Sotomayor, Hugo"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "100"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nde2 Bb4 7. a3 Ba5 8. b4 Bb6 9. Bg5 Bxf2+ 10. Kxf2 Ng4+ 11. Ke1 Qxg5 12. Qd2 Qh4+ 13. g3 Qf6 14. Nd5 Qf2+ 15. Kd1 0-0 16. h3 Qf3 17. Rg1 Nf2+ 18. Kc1 Nxe4 19. Qe3 Qxe3+ 20. Nxe3 d6 21. Bg2 Nf6 22. Rd1 Rd8 23. b5 Na5 24. Kb2 Rb8 25. Rd3 Be6 26. Rad1 Nc4+ 27. Kc1 e4 28. Rc3 Nxe3 29. Rxe3 d5 30. Nd4 Bd7 31. Kb2 Rbc8 32. g4 Ne8 33. a4 Nd6 34. Re2 a6 35. Nb3 Be8 36. Kb1 axb5 37. Rxd5 bxa4 38. Nc5 Bc6 39. Rd1 Nb5 40. Rxd8+ Rxd8 41. Kc1 Nc3 42. Re3 Nd1 43. Re2 a3 44. Nb3 Nc3 45. Re1 e3 46. Bxc6 bxc6 47. Nc5 Rd5 48. Nd3 a2 49. Kb2 Rb5+ 50. Kxc3 Rb1 0-1

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "2"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Pacheco Vega, Juan Edgardo"]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "159"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5 6. Nf3 g4 7. Ng5 Bf5 8. Nc3 dxe5 9. fxe5 Nc6 10. Be3 Bh6 11. Nxf7 Kxf7 12. Bxh6 Qxd4 13. Qxd4 Nxd4 14. 0-0-0 Rad8 15. c5 Nc8 16. Bc4+ Be6 17. Rhf1+ Kg6 18. Bxe6 Nxe6 19. Be3 c6 20. Ne2 Rxd1+ 21. Kxd1 Rf8 22. Nf4+ Nxf4 23. Bxf4 e6 24. Ke2 Ne7 25. Ke3 Rd8 26. g3 Rd5 27. Rc1 Nf5+ 28. Ke2 Nd4+ 29. Ke3 Kf5 30. b4 h5 31. a3 Nf3 32. Rf1 a5 33. h3 axb4 34. hxg4+ hxg4 35. axb4 Nd2 36. Rh1 Nc4+ 37. Ke2 Nxe5 38. Rh5+ Kf6 39. Rh7 Nf7 40. Rh4 Kf5 41. Rh5+ Kg6 42. Rh4 Rd4 43. Bd2 Ng5 44. Bc3 Rd7 45. Rxg4 Kh5 46. Rh4+ Kg6 47. Ke3 Rd1 48. Bd2 Rb1 49. Ke2 Nf7 50. Rg4+ Kf5 51. Rg7 Kf6 52. Bc3+ Ke7 53. g4 Kf8 54. g5 e5 55. Rh7 Rg1 56. Bd2 Rg2+ 57. Ke1 Kg8 58. Rh3 Nxg5 59. Bxg5 Rxg5 60. Rd3 Rg4 61. Rd8+ Kh7 62. Rd7+ Rg7 63. Rd6 Re7 64. Ke2 Kg7 65. Ke3 Kf8 66. Ke4 Ke8 67. Rh6 Kd8 68. Rh5 Rg7 69. Kxe5 Rg4 70. b5 cxb5 71. Rh6 Kc7 72. Rb6 Rb4 73. Kd5 Rb1 74. Kd4 Rd1+ 75. Ke4 Rb1 76. Kd4 Rd1+ 77. Kc3 Rc1+ 78. Kb4 Rb1+ 79. Ka5 Rc1 80. Kb4 1/2-1/2

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "5"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "B91"]
[PlyCount "75"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. h3 Qc7 10. Be3 Nc6 11. Nde2 Ne5 12. b3 Bd7 13. f4 Nc6 14. Qd2 Rac8 15. Rac1 b5 16. g4 Qa5 17. g5 Nh5 18. Nd5 Qxd2 19. Bxd2 Be6 20. c3 Bxd5 21. exd5 Nd8 22. Bf3 Nb7 23. f5 Be5 24. Bxh5 gxh5 25. Bf4 Rc5 26. Rfd1 f6 27. gxf6 Bxf6 28. Kg2 Bh4 29. Be3 Rcc8 30. Nd4 Kf7 31. Kf3 Rg8 32. Bf4 Nc5 33. c4 bxc4 34. Rxc4 Bg5 35. Bxg5 Rxg5 36. b4 Rg3+ 37. Kxg3 Ne4+ 38. Kf4 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "9"]
[White "Clavijo Usuga, Jose Luis"]
[Black "Urday Caceres, Henry"]
[Result "0-1"]
[ECO "C06"]
[PlyCount "44"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 f6 10. exf6 Nxf6 11. 0-0 Bd6 12. Re1 0-0 13. a3 Bd7 14. Rb1 Rae8 15. Bf4 e5 16. dxe5 Nxe5 17. Nxe5 Bxe5 18. Be3 Bxh2+ 19. Kh1 Rxe3 20. fxe3 Ng4 21. Rf1 Qh6 22. Rxf8+ Kxf8 0-1

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "10"]
[White "Moran, Bernardo"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "D64"]
[WhiteElo "2420"]
[PlyCount "57"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. Rc1 c6 9. Be2 Bb7 10. 0-0 Nbd7 11. Qc2 Rc8 12. Rfd1 dxc4 13. Bxc4 Nd5 14. Bg3 N7f6 15. e4 Nxc3 16. bxc3 Nh5 17. Be5 Bf6 18. g4 Bg5 19. gxh5 Bxc1 20. Qxc1 Qe7 21. Qf4 Rfd8 22. Qg4 Qf8 23. Kh1 Kh8 24. Rg1 f6 25. Nh4 Kh7 26. Ng6 Qe8 27. Nf4 Rd7 28. Bxe6 Re7 29. Qf5+ 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "8"]
[White "Rojas Sepulveda, Eduardo"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "2350"]
[PlyCount "79"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 Nc6 5. Bg2 Be7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 a6 9. b3 d5 10. cxd5 Nxd5 11. Nxd5 exd5 12. Bb2 Bf6 13. Qd2 Be6 14. Rfd1 Qe7 15. Rac1 Rac8 16. Nxe6 fxe6 17. Bxf6 Qxf6 18. e4 d4 19. e5 Nxe5 20. Rxc8 Rxc8 21. Qxd4 Nf3+ 22. Bxf3 Qxf3 23. Qd7 Rc6 24. Qd8+ Qf8 25. Kg2 h6 26. Qd7 Rc2 27. Qxe6+ Kh8 28. Qb6 Qc5 29. Qd8+ Kh7 30. Qd3+ Kg8 31. Qf3 Qc6 32. Rd8+ Kh7 33. Qxc6 bxc6 34. a4 Rb2 35. Rd3 c5 36. Rc3 c4 37. bxc4 Rb6 38. c5 Rc6 39. Kf3 Kg6 40. Ke4 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "4"]
[White "Rosito, Jorge"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "B75"]
[PlyCount "87"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 Bd7 9. g4 Rc8 10. h4 h5 11. g5 Nh7 12. f4 Bg4 13. Bc4 0-0 14. Bb3 Na5 15. Qd3 Nxb3 16. axb3 a6 17. 0-0 e5 18. Nf3 f6 19. gxf6 Rxf6 20. Ng5 Nxg5 21. hxg5 Rf7 22. f5 Qd7 23. Nd5 gxf5 24. g6 Rff8 25. Nb6 fxe4 26. Qd5+ Be6 27. Nxd7 Rxf1+ 28. Rxf1 Bxd5 29. Nb6 Rxc2 30. Nxd5 Rxb2 31. Rf7 Rxb3 32. Ne7+ Kh8 33. Bh6 Rg3+ 34. Kh2 Rxg6 35. Nxg6+ Kh7 36. Bxg7 Kxg6 37. Rxb7 e3 38. Bf8 d5 39. Kg3 Kf5 40. Kf3 d4 41. Rf7+ Ke6 42. Ra7 e4+ 43. Kxe4 e2 44. Bb4 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "3"]
[White "Servat, Roberto"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "2290"]
[PlyCount "105"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. h4 Rc8 11. Bb3 h5 12. 0-0-0 Ne5 13. Bg5 a6 14. g4 Nc4 15. Qe2 b5 16. Nf5 Bxf5 17. gxf5 Qb6 18. Rhg1 Kh7 19. fxg6+ fxg6 20. Bxc4 Rxc4 21. Be3 Bh6 22. Bxh6 Kxh6 23. Qg2 Rg8 24. Nd5 Nxd5 25. Qg5+ Kh7 26. Rxd5 Rg7 27. b3 Rc3 28. f4 Qf2 29. Rd2 Qe3 30. f5 Qxg5 31. Rxg5 Kh6 32. Rdg2 Re3 33. Rxg6+ Rxg6 34. Rxg6+ Kh7 35. Re6 Kg8 36. Rxe7 Rh3 37. Kd2 Rxh4 38. Ke3 Rg4 39. Re6 h4 40. Rxd6 Kg7 41. Kf3 Rg3+ 42. Kf4 Rg2 43. Rg6+ Rxg6 44. fxg6 Kxg6 45. c4 bxc4 46. bxc4 Kf6 47. Kg4 Ke5 48. c5 a5 49. Kxh4 a4 50. Kg5 Kxe4 51. c6 Kd5 52. c7 Kc6 53. c8Q+ 1-0

[Event "Pan American-ch U20 11th"]
[Site "Quito"]
[Date "1986.09.??"]
[Round "6"]
[White "Sorin, Ariel"]
[Black "Clavijo Usuga, Jose Luis"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2230"]
[PlyCount "57"]
[EventDate "1986.09.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ECU"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 Ne4 4. Qc2 Qa5+ 5. Nd2 f5 6. f3 Nd6 7. e4 g6 8. b4 Qxb4 9. Bb2 Rg8 10. e5 Nf7 11. Bd3 e6 12. Ne2 Bg7 13. f4 d6 14. Rb1 Qa5 15. 0-0 dxe5 16. fxe5 Ke7 17. Nb3 Qd8 18. Nxc5 b6 19. Nxe6 Bxe6 20. dxe6 Nxe5 21. Nf4 Nxd3 22. Nd5+ Kxe6 23. Qxd3 Nc6 24. Rbe1+ Kf7 25. Rxf5+ gxf5 26. Qxf5+ Bf6 27. Bxf6 Qc8 28. Qxh7+ Kf8 29. Be7+ 1-0

